Email issue

For the past 2 days I've been having a problem with my emails. I recieve emails and go on the internet but I can't send emails. I've resent service books and re registered the BB but no luck. Any suggestions

Nevermind, all my emails finally sent. Very wierd but it seems to be working correctly now. They all had a red square with a line in them, some since yesterday, then I just checked and they were all sent.

Just a little side note... When ever I have a problem similar to yours... I've been finding that with the 5.0 OS's that for some reason it will show 3G, but act as though its 1x signal. The easy fix I've found for this is... Just simply turn the radio off and turn it back on! It seams to grab the signal back and accomplish whatever I was doing! Give it a shot.